On Mon, 2018-04-16 at 16:07 +0000, Mario.Limonciello@xxxxxxxx wrote: > Hi Dennis, > > > -----Original Message----- > > From: Dennis Gilmore [mailto:dgilmore@xxxxxxxxxx] > > Sent: Friday, April 13, 2018 9:03 PM > > To: linux-kernel@xxxxxxxxxxxxxxx; linux-acpi@xxxxxxxxxxxxxxx > > Cc: Limonciello, Mario > > Subject: issues with suspend on Dell XPS 13 2-in-1 > > > > Hi All, > > > > I have a Dell XPS 13 2-in-1 (9365) that when I supend gets warm and > > has > > much shorter than expected battery life, it is about the same as if > > the > > laptop just runs. I am currently running Fedora 28 with 4.16.2 > > kernel. > > > > Since battery consumption is quite relative I think It would be good > if > you can make a comparable benchmark as this is further discussed. > Eg fully charge your notebook, pull the plug, suspend it at 100% and > check the power left after some repeatable amount of time. > > > My laptop has NVMe for storage and is configured for AHCI mode in > > the > > bios. > > > > powertop by default shows > > > > Bad VM writeback timeout > > > > Bad NMI watchdog should be turned off > > Bad Autosuspend for unknown USB device 1-7 (138a:0091) > > Bad Runtime PM for I2C Adapter i2c-0 (i915 gmbus dpc) > > Bad Runtime PM for I2C Adapter i2c-1 (i915 gmbus dpb) > > Bad Runtime PM for I2C Adapter i2c-2 (i915 gmbus dpd) > > Bad Runtime PM for PCI Device Intel Corporation > > Wireless > > 8265 / 8275 > > Bad Runtime PM for PCI Device Intel Corporation Device > > 590c > > Bad Runtime PM for PCI Device Realtek Semiconductor > > Co., > > Ltd. RTS525A PCI Express Card Reader > > Bad Runtime PM for PCI Device Intel Corporation Device > > 9d3d > > Bad Runtime PM for PCI Device Sandisk Corp WD Black > > NVMe > > SSD > > Bad Runtime PM for PCI Device Intel Corporation > > Sunrise > > Point-LP PCI Express Root Port #9 > > Bad Runtime PM for PCI Device Intel Corporation > > Sunrise > > Point-LP Thermal subsystem > > Bad Runtime PM for PCI Device Intel Corporation > > Sunrise > > Point-LP USB 3.0 xHCI Controller > > Bad Runtime PM for PCI Device Intel Corporation > > Sunrise > > Point-LP PMC > > Bad Runtime PM for PCI Device Intel Corporation > > Sunrise > > Point-LP HD Audio > > Bad Runtime PM for PCI Device Intel Corporation > > Sunrise > > Point-LP PCI Express Root Port #1 > > Bad Runtime PM for PCI Device Intel Corporation Device > > 9d4b > > Bad Runtime PM for PCI Device Intel Corporation Xeon > > E3- > > 1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem > > Bad Runtime PM for PCI Device Intel Corporation > > Sunrise > > Point-LP Integrated Sensor Hub > > Bad Runtime PM for PCI Device Intel Corporation Device > > 591e > > After you've adjusted all of these in powertop, have you compared > your performance of the battery over sleep (and actually over runtime > usage really too)? > > They should help to allow the CPU to get into deeper states. > > After you've made that change you should also see on the "Idle Stats" > page that your CPU is spending more time in the lower C states > (hopefully > more in C9/10). > > Srinivas, > > Do you know why Runtime PM is defaulting to disabled for all of these > devices? Is that a default kernel policy problem or a distro policy > problem? This is default kernel policy. I suggest run #turbostat then suspend and wake when wake up let the turbostat collect data for next sampling interval. We have to see what are PkgC% residencies are? Thanks, Srinivas > > > > Good Bluetooth device interface status > > Good Enable Audio codec power management > > Good Runtime PM for I2C Adapter i2c-8 (Synopsys > > DesignWare > > I2C adapter) > > Good Autosuspend for USB device Integrated_Webcam_HD > > [CNFGE16N092020028362] > > Good Autosuspend for USB device xHCI Host Controller > > [usb1] > > Good Autosuspend for USB device xHCI Host Controller > > [usb2] > > Good Runtime PM for I2C Adapter i2c-7 (SMBus I801 > > adapter > > at efa0) > > Good Autosuspend for unknown USB device 1-2 (8087:0a2b) > > Good Runtime PM for I2C Adapter i2c-6 (Synopsys > > DesignWare > > I2C adapter) > > Good I2C Device i2c-DLL077A:01 has no runtime power > > management > > Good I2C Device i2c-WCOM482F:00 has no runtime power > > management > > Good Runtime PM for PCI Device Intel Corporation > > Sunrise > > Point-LP PCI Express Root Port #10 > > Good Runtime PM for PCI Device Intel Corporation > > Sunrise > > Point-LP CSME HECI #1 > > Good Runtime PM for PCI Device Intel Corporation > > Sunrise > > Point-LP Serial IO I2C Controller #1 > > Good Runtime PM for PCI Device Intel Corporation > > Sunrise > > Point-LP SMBus > > Good Runtime PM for PCI Device Intel Corporation > > Sunrise > > Point-LP PCI Express Root Port #5 > > Good Runtime PM for PCI Device Intel Corporation > > Sunrise > > Point-LP Serial IO I2C Controller #0 > > Good Wake-on-lan status for device virbr0-nic > > Good Wake-on-lan status for device virbr0 > > Good Wake-on-lan status for device wlp60s0 > > > > Regards > > > > Dennis
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